Universal four-body states in heavy-light mixtures with positive scattering length

Abstract

The number of four-body states known to behave universally is small. This work adds a new class of four-body states to this relatively short list. We predict the existence of a universal four-body bound state for heavy-light mixtures consisting of three identical heavy fermions and a fourth distinguishable lighter particle with mass ratio $\kappa \gtrsim 9.5$ and short-range interspecies interaction characterized by a positive s-wave scattering length. The structural properties of these universal states are discussed and finite-range effects are analyzed. The bound states can be experimentally realized and probed utilizing ultracold atom mixtures.

5 pages

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Cited by in corpus (32)

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• Polarons, Dressed Molecules, and Itinerant Ferromagnetism in ultracold Fermi gases
• Universal few-body physics and cluster formation
• The light scalar mesons as tetraquarks
• Five-Body Efimov Effect and Universal Pentamer in Fermionic Mixtures
• Bound states in a quasi-two-dimensional Fermi gas
• Born-Oppenheimer study of two-component few-particle systems under one-dimensional confinement
• Diagrammatic Monte Carlo study of mass-imbalanced Fermi-polaron system
• High-temperature limit of the resonant Fermi gas
• Universal clusters as building blocks of stable quantum matter
• Non-universal bound states of two identical heavy fermions and one light particle
• Binding of heavy fermions by a single light atom in one dimension
• Lifetime of Feshbach dimers in a Fermi-Fermi mixture of ${}^6$Li and ${}^{40}$K
• Ultracold LiCr: a new pathway to quantum gases of paramagnetic polar molecules
• Quartet Superfluid in Two-dimensional Mass-imbalanced Fermi Mixtures
• Hyperspherical explicitly correlated Gaussian approach for few-body systems with finite angular momentum
• Double-degenerate Fermi mixtures of ${}^6$Li and ${}^{53}$Cr atoms
• Universal tetramer and pentamer in two-dimensional fermionic mixtures
• Scattering of universal fermionic clusters in the resonating group method
• Ultracold mixtures of metastable He and Rb: scattering lengths from ab initio calculations and thermalization measurements
• Emergence of Crystalline Few-body Correlations in Mass-imbalanced Fermi Polarons
• Three and four identical fermions near the unitary limit
• Tetramers of two heavy and two light bosons
• Mass-imbalanced fermionic mixture in a harmonic trap
• Competing few-body correlations in ultracold Fermi polarons
• Impurity-induced pairing in two-dimensional Fermi gases
• Stability of $(N+1)$-body fermion clusters in multiband Hubbard model
• Self-binding of one-dimensional fermionic mixtures with zero-range interspecies attraction
• Heavy-light $N+1$ clusters of two-dimensional fermions
• Universal clusters in quasi-two-dimensional ultracold Fermi mixtures
• Efimov physics beyond three particles
• Absence of binding of heavy fermions by two light atoms in two dimensions